PMB31D-20100-00
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The PMB31D-20100-00 is a flange-mounted brushless DC motor with a frame size of 60mm and a rated power of 200W. Manufactured by Pacific Scientific under the PMB Brushless Servomotors series, it operates at a rated speed of 3000 rpm and a rated voltage of 24V DC. The motor features IP54 protection and weighs approximately 2.1 kg.
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Product Description:
The PMB31D-20100-00 Brushless Motor has a rated inductance (line-to-line) of 5.2 mH to control current flow efficiently and sustain stable magnetic field regulation. This Pacific Scientific motor has a rated stall current of 5.4 Arms to facilitate a continuous torque supply without inducing excessive thermal rise.
This PMB31D-20100-00 motor possesses a voltage constant of 26.4 Vrms/kRPM (RMS) to provide effective speed regulation upon integration with compatible servo drive systems. For high-demand applications, this motor supports a current at maximum torque of 15.3 Arms to achieve fast acceleration and effective handling of intermittent heavy loads. The employment of Neodymium Iron Boron magnets is responsible for this motor’s high magnetic power, which allows enhanced torque density and quicker reaction time. This motor's total weight is 2.5 kg, providing a good weight-to-performance ratio for use where installation space and load capacity are of concern. This motor features a maximum torque of 6.26 Nm, catering to the needs of brief-term, high-intensity torque requirements. In conditions of sustained loading, the PMB31D-20100-00 motor provides an average rated torque of 1.62 Nm for consistent performance in steady-duty operations.
With the thermal resistance being 1.08 °C/Watt, this servo motor ensures effective heat dissipation and safeguards internal components in prolonged functioning cycles. The static friction is restricted to 0.09 Nm, which reduces initial resistance and improves motion sensitivity. For electrical compatibilities, this motor has a 240V AC rated voltage and a 320V DC bus for integration in a range of industrial motion systems. The wiring configuration of the PMB31D-20100-00 motor utilizes flying leads with AMP terminations for safe connection and easy mounting within control cabinets. Its IP40 build protects against solid particles greater than 1 mm, making it appropriate for controlled, dust-free operating conditions.
Frequently Asked Questions about PMB31D-20100-00:
Q: Why are Neodymium Iron Boron magnets used in this motor?
A: They provide strong magnetic fields, increasing torque density and responsiveness. This improves acceleration and positioning accuracy.
Q: How does the rotor balance of the PMB31D-20100-00 affect performance?
A: The balanced rotor reduces vibration during operation, improving accuracy in motion control. This also extends bearing life under continuous use.
Q: How does the 1.08 °C/Watt thermal resistance benefit the PMB31D-20100-00?
A: It ensures efficient heat dissipation, allowing longer operation without overheating. This supports reliable performance in continuous-duty applications.
Q: What advantage does the IP40 construction offer for the PMB31D-20100-00?
A: It protects against solid particles larger than 1 mm, ensuring clean internal components. This makes it ideal for controlled environments.
Q: Why is a 320V DC bus rating important in servo applications?
A: It allows higher energy input for faster acceleration and higher peak torque. This supports demanding motion profiles in automation.
